CN105546319A - Electrophoresis process holes for automotive pipe frame and machining process of holes - Google Patents
Electrophoresis process holes for automotive pipe frame and machining process of holes Download PDFInfo
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- CN105546319A CN105546319A CN201610106503.6A CN201610106503A CN105546319A CN 105546319 A CN105546319 A CN 105546319A CN 201610106503 A CN201610106503 A CN 201610106503A CN 105546319 A CN105546319 A CN 105546319A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to electrophoresis process holes for an automotive pipe frame and a machining process of the holes, and belongs to the field of automotive parts and machining technologies thereof. The electrophoresis process holes and the machining process of the holes are used for automotive frame cathode electrophoresis. The electrophoresis process holes comprise liquid immersion and exhaust long holes and liquid immersion and exhaust U-shaped holes, the liquid immersion and exhaust long holes are formed in a horizontal pipe, the liquid immersion and exhaust U-shaped holes are formed in the ends of a vertical pipe and/or a diagonal bracing pipe, and on the basic premise that liquid accumulation and air bulking do not occur in an inner cavity of the automotive pipe frame, the paint film quality (the film thickness and corrosion resistance) of the inner surface and the outer surface of a cavity structure and stability and controllability (liquid leakage) of working liquid are met. Liquid flowing and exhausting functions are guaranteed, the liquid accumulation phenomenon of a closed structure is eradicated, and it is guaranteed that the liquid can enter and flow out of the closed structure; the number of anti-electromagnetic shielding holes is increased as much as possible under the condition of considering the construction feasibility, the better electrophoresis paint effect can be guaranteed, and the advantages of being simple in structure, low in machining cost and capable of avoiding stress concentration of welded steel pipes to the maximum extent and improving the cathode electrophoresis efficiency of a whole automobile and anti-corrosion capacity are achieved.
Description
Technical field
The present invention relates to a kind of automobile-used pipe support electrophoresis process hole and processing technology thereof, for automobile skeleton ability cathode electrophoresis, belong to auto parts and components and processing technique field thereof.
Background technique
Along with passenger improves constantly the requirement of passenger vehicle vehicle security, the new technology about bus safety is constantly released.Full-bearing type car load farthest can improve vehicle safety, at utmost protects passenger's personal safety, and technique has obtained popular generally accreditation.GB7258 more explicitly calls for, and the highway passenger vehicle car load skeleton that car load vehicle commander is greater than 11 meters must use full bearing technology, has affirmed full support framework technology from policy aspect.
Supporting key that full bearing technology can implement smoothly is exactly weld anticorrosion, and the welding anticorrosion process do not had, the advantage of full bearing technology equals not talk about.Cathodic Electrophoretic Painting Technology is good with its throwing power, and appearance of film is level and smooth, and thickness is homogeneous, film excellent anti-corrosion performance, be applicable to production line balance, can realize automation completely, utilization efficiency of coatings is high, the advantages such as Security is good, and public hazards are low, are widely used in full-bearing type automobile.
And the key that can ability cathode electrophoresis be able to implement smoothly is exactly perforate and the layout in welded framework electrophoresis process hole, existing electrophoresis process hole due to shape, size and location arrangements unreasonable, when carrying out passenger vehicle car load electrophoresis, electrophoresis liquid can not enter vehicle body steel pipe inner chamber smoothly, line of electric force can not arrive tube cavity smoothly, can not swim priming coated in steel tubes inside, and liquid can not be discharged fast when pretreatment and electrophoresis, thus affect final electrophoresis film quality.In addition, the stress that the design in electrophoresis process hole improperly also can increase frame welding place is concentrated, and causes automotive safety hidden danger.This is the deficiencies in the prior art parts.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of automobile-used pipe support electrophoresis process hole and processing technology thereof, welded steel pipe stress at utmost can be avoided to concentrate and increase car load ability cathode electrophoresis efficiency and antiseptic power, there is the advantage that structure is simple, processing cost is low.
Technological scheme of the present invention is as follows: a kind of automobile-used pipe support electrophoresis process hole, comprises immersion liquid exhaust elongated hole, and described immersion liquid exhaust elongated hole is arranged on horizontal pipe, and the distance S1 between the edge of described immersion liquid exhaust elongated hole and the edge of horizontal pipe is 10 ~ 20mm;
Width d1=0.25 × the D1 of described immersion liquid exhaust elongated hole, wherein D1 refer to horizontal pipe horizontal plane on tube edge on vertical-horizontal pipe horizontal plane center line long, as D1 < 20mm, d1=0;
As the length H1 >=250mm of horizontal pipe, the immersion liquid exhaust length L1=D1 of elongated hole and L1≤50mm; As 80mm < H1 < 250mm, L1=d1; As H1≤80mm, L1=0.
Technological scheme of the present invention also comprises: described electrophoresis process hole also comprises immersion liquid exhaust U hole, and described immersion liquid exhaust U hole is arranged on the end of vertical tube and/or down tube;
Width d2=0.25 × the D2 in described immersion liquid exhaust U hole, wherein D2 refers to that the tube edge of the vertical plane center line of the auxiliary hole place plane of down tube (5) or vertical tube (6) is long, as D2 < 20mm, d2=0;
As the tube edge long D2 < 40mm of the vertical plane center line of the auxiliary hole place plane of down tube or vertical tube, the length L2=12mm in immersion liquid exhaust U hole; As D2 >=40mm, L2=20mm.
Through operating modes such as the stressed fatigue limit of finite element analysis pipe support and beaming limits, find that vertical tube and down tube are applicable to processing U hole, and, consider the problem how accepted or rejected between immersion liquid efficiency and Welding Safety, when ensure at utmost to avoid as far as possible pipe support occur stressed concentrated, through finite element analysis its stressed fatigue limit and beaming limit, find immersion liquid to be vented U hole be dimensioned to above-mentioned numerical value time effect better.
Technological scheme of the present invention also comprises: the length of described horizontal pipe or down tube or vertical tube is when being greater than 600mm and being less than between 1100mm, and the middle part of horizontal pipe or down tube or vertical tube is provided with drainage exhaust circular hole;
When the length of horizontal pipe or down tube or vertical tube is more than or equal to 1100mm, the spacing between adjacent drainage exhaust circular hole is 600mm.
Circular hole, relative to elongated hole and U hole, more effectively can be avoided stressed stress to concentrate, find after deliberation, when circular hole adopts above-mentioned numerical Design, does not almost have stress to concentrate; But the defect of circular hole be on horizontal pipe immersion liquid efficiency low, on vertical tube, easily there is immersion liquid dead angle, so circular hole is arranged in the medium position of pipe.
Technological scheme of the present invention also comprises: when the tube edge length of the vertical plane center line of the auxiliary hole place plane of described horizontal pipe or down tube or vertical tube is less than 60mm, and the diameter d 3 of drainage exhaust circular hole is 10mm; When the tube edge length of the vertical plane center line of the auxiliary hole place plane of horizontal pipe or down tube or vertical tube is more than or equal to 60mm, the diameter d 3 of drainage exhaust circular hole is 20mm.The benefit of this kind of design is the immersion liquid efficiency that as far as possible can add big hole, and stress can be avoided again to concentrate simultaneously.
Technological scheme of the present invention also comprises: described immersion liquid exhaust elongated hole is arranged on the center line of horizontal pipe upper and lower surface, and described horizontal pipe is vertical ends horizontal pipe and/or inclined end portion horizontal pipe.In theoretical mechanics, center line is the neutrosphere of tubing, neutrosphere does suitable subtract materials processing, does not affect its mechanical property.
Technological scheme of the present invention also comprises: the corner cut acute side of described down tube is provided with immersion liquid exhaust U hole, and described immersion liquid exhaust U hole is positioned on the center line of down tube.Find that doing auxiliary hole at acute angle place is better than obtuse angle place after this kind of design is also through force analysis of finite element.
Technological scheme of the present invention also comprises: the end of described vertical tube is provided with through immersion liquid exhaust U hole, and described immersion liquid exhaust U hole is positioned on the center line in the non-covering of vertical tube or non-covered face.The reason that non-covering or non-covered face arrange U hole is, covering and coverage rate are later stage weldment, if auxiliary hole is positioned at covering or coverage rate side, the auxiliary hole on former pipe fitting can be covered.
A kind of processing technology of automobile-used pipe support electrophoresis process hole, when described horizontal pipe docks with down tube or vertical tube, during the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube or vertical tube equals horizontal pipe on vertical-horizontal pipe horizontal plane center line, drainage exhaust circular hole is set in the central position of down tube or vertical tube;
The half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube or vertical tube is greater than horizontal pipe on vertical-horizontal pipe horizontal plane center line but the length of side on the horizontal plane being less than described horizontal pipe on vertical-horizontal pipe horizontal plane center line time, the center line of horizontal pipe arranges drainage exhaust circular hole and drainage is vented cross section that circular hole is positioned at down tube or vertical tube;
One half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube or vertical tube is less than or equal to horizontal pipe on vertical-horizontal pipe horizontal plane center line, drainage exhaust circular hole is set in the cross section of down tube or vertical tube, when drainage is vented the distance L > D1/4 between the center of circle of circular hole and horizontal pipe center line, the center line of horizontal pipe arranges drainage exhaust circular hole.
The benefit of such setting is, can accelerate the drainage efficiency of vertical tube or down tube as far as possible, at utmost reduces conduction hole to the impact of horizontal pipe intensity simultaneously.
Technological scheme of the present invention also comprises: during the long < 60mm of the tube edge of the vertical plane center line of the auxiliary hole place plane of described down tube or vertical tube, the diameter d 3=10mm of drainage exhaust circular hole; During the tube edge length >=60mmmm of the vertical plane center line of the auxiliary hole place plane of down tube or vertical tube, the diameter d 3=20mm of drainage exhaust circular hole.
Technological scheme of the present invention also comprises: one end of described down tube or vertical tube and the intersection location place of horizontal pipe are when immersion liquid is vented the position of elongated hole, and the immersion liquid exhaust elongated hole of described position changes to drainage exhaust circular hole;
When described horizontal pipe vertically superposes, the immersion liquid exhaust elongated hole at adjacent level pipe intersection location place changes to drainage exhaust circular hole.
The stressed stress that elongated hole can add big steel pipe is concentrated, if elongated hole is in the welding position near vertical tube or down tube, stress is concentrated can be more obvious, in order to avoid adverse effect changes elongated hole into circular hole; When horizontal pipe superposes up and down, mostly elongated hole is to adopt impact briquetting, and difficulty of processing is large, changes brill circular hole in order to easy to process.
The invention has the beneficial effects as follows: through operating modes such as the stressed fatigue limit of finite element analysis pipe support and beaming limits, find that horizontal pipe is applicable to processing elongated hole, therefore on horizontal pipe, design immersion liquid exhaust elongated hole, and, consider the problem how accepted or rejected between immersion liquid efficiency and Welding Safety, when ensure at utmost to avoid as far as possible pipe support occur stressed concentrated, through finite element analysis its stressed fatigue limit and beaming limit, find immersion liquid to be vented elongated hole be dimensioned to above-mentioned numerical value time effect better; In addition, position immersion liquid being vented elongated hole is arranged on distance horizontal pipe 10 ~ 20mm, also the distance the most suitable obtained after being through finite element analysis, because if the too little meeting of spacing causes welding stress to concentrate affect Security, then can affect too greatly immersion liquid speed and cause the interior space of pipe cannot immersion liquid.
In addition, the present invention, under the basic premise guaranteeing automobile-used pipe support inner chamber " not hydrops, not paulin gas ", meets the film quality (thickness, corrosion resistance) of cavity body structure inner and outer surface and stable, the controllability (not altering liquid) of working solution; Guarantee flow liquid, degassing function, stop enclosed construction hydrops phenomenon, ensure that liquid enters go, stream draws; Better electrophoretic paint effect can be ensured when taking into account construction feasibility, having that structure is simple, easy processing and cost is low, can at utmost avoid welded steel pipe stress concentrate and increase the advantage of car load ability cathode electrophoresis efficiency and antiseptic power.
Accompanying drawing explanation
Fig. 1 be immersion liquid of the present invention exhaust elongated hole schematic diagram one is set.
Fig. 2 be immersion liquid of the present invention exhaust elongated hole schematic diagram two is set.
Fig. 3 is the schematic front view that immersion liquid of the present invention exhaust U hole is arranged on down tube.
Fig. 4 is the schematic side view that immersion liquid of the present invention exhaust U hole is arranged on down tube.
Fig. 5 is the schematic front view that immersion liquid of the present invention exhaust U hole is arranged on vertical tube.
Fig. 6 is the schematic side view that immersion liquid of the present invention exhaust U hole is arranged on vertical tube.
Fig. 7 is the layout schematic diagram in electrophoresis process hole of the present invention.
Fig. 8 be in Fig. 7 A to schematic diagram.
Fig. 9 is the layout schematic diagram of electrophoresis process hole of the present invention in butt tube.
In figure: 1, immersion liquid exhaust elongated hole, 2, vertical ends horizontal pipe, 3, inclined end portion horizontal pipe, 4, immersion liquid exhaust U hole, 5, down tube, 6, vertical tube, 7, drainage exhaust circular hole, 11, steel pipe, 12, No. two steel pipes, 13, No. three steel pipes, 14, No. four steel pipes, 15, No. five steel pipes, 16, No. six steel pipes, 17, No. seven steel pipes, 18, No. eight steel pipes, 19, No. nine steel pipes, 20, flat plate, 21, ride on Bus No. 11 steel pipe, 31, docking mode one, 32, docking mode two, 33, docking mode three, 34, docking mode four, 35, docking mode five.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
Electrophoresis process hole of the present invention is used for automobile skeleton ability cathode electrophoresis technique, structure is simple, processing cost is low, reasonable in design, and easy construction is easy, effectively increase efficiency and the antiseptic power of car load ability cathode electrophoresis, can at utmost avoid again the stress of welded steel pipe to concentrate simultaneously.
Electrophoresis process hole of the present invention mainly comprises immersion liquid exhaust elongated hole 1, immersion liquid exhaust U hole 4, drainage exhaust circular hole 7 and anti-electromagnetic shielding hole, it should be noted that, in order to reduce actual labor content and reduce difficulty of construction in the present invention, the immersion liquid of having processed through considering utilization is vented the anti-electro-magnetic screen function that elongated hole 1, immersion liquid exhaust U hole 4 and drainage exhaust circular hole 7 realize anti-electromagnetic shielding hole, and anti-electromagnetic shielding hole is set no longer separately, the anti-electromagnetic shielding hole of anti-electro-magnetic screen function can certainly be set separately.
As depicted in figs. 1 and 2, immersion liquid exhaust elongated hole 1 of the present invention is arranged on the steel pipe of horizontal positioned, specifically comprises:
(1), immersion liquid is vented elongated hole 1 edge distance vertical ends horizontal pipe 2 or inclined end portion horizontal pipe 3 Edge Distance is 10 ~ 20mm, and the width of immersion liquid exhaust elongated hole 1 is d1=0.25 × D1.Wherein, the tube edge on the horizontal plane that D1 refers to horizontal pipe on vertical-horizontal pipe horizontal plane center line is long, does not arrange auxiliary hole, i.e. d1=0 as D1 < 20mm.
(2), as the length H1≤80mm of horizontal pipe, auxiliary hole is not set, i.e. the length L1=0 of immersion liquid exhaust elongated hole 1; As 80mm < H1 < 250mm, L1=d1 (namely elongated hole is circular hole); As 250mm≤H1, L1=D1 and L1≤50mm.
(3), as 600mm < H1 < 1100mm, a pair up/down perforation drainage exhaust circular hole 7 is increased in two elongated hole middles; As 1100mm≤H1, intermediate portion, from apart from end, arranges up/down perforation drainage exhaust circular hole 7 at interval of 600mm.(as D1 < 60mm, through drainage exhaust circular hole 7 diameter d 3 is 10mm; As 60mm≤D1, through drainage exhaust circular hole 7 diameter d 3 is 20mm)
(4), the position of immersion liquid exhaust elongated hole 1 and drainage exhaust circular hole 7 is all on the center line of the horizontal upper and lower surface of steel pipe.
As shown in Figures 3 to 6, immersion liquid exhaust U hole 4 is arranged on the end of vertical tube 6 or down tube 5, specifically comprises:
(1), immersion liquid exhaust U hole 4 width d2=0.25 × D2, wherein, D2 refers to that the tube edge of the vertical plane center line of the auxiliary hole place plane of down tube or vertical tube is long, does not arrange auxiliary hole, i.e. d2=0 as D2 < 20mm.
(2), as D2 < 40mm, the length L2=12mm in immersion liquid exhaust U hole 4, the L2=20mm as 40mm≤D2.
(3) band corner cut, be as shown in Figure 3 and Figure 4 used as diagonal brace down tube 5 end only one-sided arrange immersion liquid exhaust U hole 4, and immersion liquid exhaust U hole 4 position in down tube 5 corner cut acute side.
(4), as shown in Figure 5 and Figure 6 without corner cut vertical tube 6 end, through immersion liquid exhaust U hole 4 is set,
Mode one: immersion liquid exhaust U hole 4 is arranged on non-covering or other product coverage rates if no special instructions, and pays the utmost attention to wide cross section;
Mode two: if vertical tube 6 occurs that both sides or three sides have miscellaneous part to cover, one-sided U hole is only set;
Mode three: if four sides are all capped do not arrange U hole, the horizontal steel tube docked arrange drainage be vented circular hole 7 with it;
(5), as the length H2≤80mm of down tube 5 or vertical tube 6, auxiliary hole is not set, i.e. the length L2=0 in immersion liquid exhaust U hole 4; As 600mm≤H2≤1100mm, at down tube 5 or vertical tube 6 drilled in middle through drainage exhaust circular hole 7; As 1100mm≤H2, intermediate portion, from apart from the 600mm of end, arranges through drainage exhaust circular hole 7 at interval of 600mm in the same level in end process hole.(as D2 < 60mm, the diameter d 3 of through drainage exhaust circular hole 7 is 10mm; As 60mm≤D2, the diameter d 3 of through drainage exhaust circular hole 7 is 20mm)
(6), the position in immersion liquid exhaust U hole 4 is on the center line of down tube 5 or vertical tube 6.
Embodiments of the invention one, as shown in Figure 7 and Figure 8,
(1) No. three steel pipe 13: the horizontal steel tube of two ends shutoff, immersion liquid exhaust elongated hole 1 is arranged on the upper and lower horizontal plane of steel pipe.
(2) No. two steel pipes 12: if the intersection of down tube 16 or vertical tube 17 one end and horizontal steel tube 12 is vented the position (in figure 7 in label 12,16 steel pipe intersection) of elongated hole 2 near immersion liquid, immersion liquid exhaust elongated hole 2 herein changes drainage exhaust circular hole 7 into and replaces.The reason of such design is, the stressed stress that elongated hole can add big steel pipe is concentrated, if elongated hole is in the welding position near vertical tube or down tube, stress is concentrated can be more obvious, so in order to reduce this impact, elongated hole changes circular hole in such cases.
If above-mentioned situation appears in No. six steel pipe 16 lower end surfaces, roughly the same process.
12: the two horizontal steel tube superposition welding of (3) No. two steel pipes, (in figure 7 in label No. 12.19 steel pipe intersections), the through drainage exhaust circular hole 7 of immersion liquid exhaust port 1 herein replaces, and arranges the drainage exhaust circular hole 7 of same size at the relative position of No. nine steel pipes 19.The reason of such design is, when horizontal pipe superposes up and down, elongated hole is because be punching hole, and difficulty of processing is large, so change brill circular hole into.
(4) No. nine steel pipes 19: adopt flat plate 20 shutoff, as shown in Figure 8, in close No. nine steel pipe 19 inwall lower plane positions, arrange immersion liquid exhaust elongated hole 1(elongated hole size by foregoing description in flat plate 20, wherein D1 value gets sealed steel pipe horizontal plane).Why using flat plate 20 shutoff herein, is prevent silt from entering in preventing follow-up pipe support from using; Further, be in order to the electrophoresis liquid in No. nine steel pipes 19 can be made to flow out as early as possible and can flow to end by Fig. 8 perforate.
(5) No. five steel pipes 15 are horizontal steel tubes of one end shutoff, and immersion liquid exhaust elongated hole 1 is only arranged on one end of shutoff.One end of not shutoff is because be opening, and electrophoresis liquid can free in and out from opening, so without the need to arranging auxiliary hole
(6) vertically steel pipe (11,14,17) all arranges immersion liquid exhaust U hole on non-covering or other product coverage rates, and pays the utmost attention to wide cross section.Ride on Bus No. 11 steel pipe 11 and ten No. seven non-shutoff in steel pipe 17 upper end, omit the immersion liquid exhaust U hole 4 of non-shutoff end.
(7) down tube (16,18) arranges immersion liquid exhaust U hole 4 in steel pipe corner cut acute side.
(8) ride on Bus No. 11 steel pipe 21: the horizontal steel tube of the equal not shutoff in both sides, omits the immersion liquid exhaust elongated hole 1 at two ends, increases through drainage exhaust port 7 in the middle part of it according to length.
(9) steel pipe of bend pipe or one end corner cut, roughly the same horizontal steel tube arranges auxiliary hole.
(10) if there is closing plate structure bottom steel pipe, get rid of while interfering with miscellaneous part, Φ d auxiliary hole (d=0.25 × D, D value gets the less length of side of sealed steel tube section) is set at bottom shrouding.
(11) there is the steel pipe at inclination angle that auxiliary hole is not set (as needle beam above car door underframe needle beam, wheel cover in the direction and horizontal plane that are parallel to cross section.), lodge in steel pipe filleted corner place to avoid electrophoresis liquid and can not flow.
(12) auxiliary hole of same steel pipe does not allow to be arranged on orthogonal two cross sections.Reason is, finds through finite element analysis, if punched on orthogonal two cross sections, larger to the strength failure of pipe fitting, so auxiliary hole only allows to arrange on two relative faces of pipe fitting.
(13) two through butt welding of steel pipe (comprising angle butt welding and vertical butt welding), class same steel pipe process.
In embodiments of the invention two, as shown in Figure 9, when down tube 5 or vertical tube 6 dock with horizontal pipe,
During employing docking mode 1, during the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of i.e. down tube 5 or vertical tube 6 equals horizontal pipe on vertical-horizontal pipe horizontal plane center line, exhaust drainage is arranged on the horizontal plane center line of docking horizontal steel tube;
During employing docking mode 2 32, the half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of i.e. down tube 5 or vertical tube 6 is greater than horizontal pipe on vertical-horizontal pipe horizontal plane center line but the length of side on the horizontal plane being less than described horizontal pipe on vertical-horizontal pipe horizontal plane center line time, ensure that exhaust drainage circular hole 7 is in docking steel pipe interface, is arranged on the center line of horizontal steel tube horizontal plane;
When docking mode 3 33, one half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of i.e. down tube 5 or vertical tube 6 is less than or equal to horizontal pipe on vertical-horizontal pipe horizontal plane center line, adopt docking mode 4 34, namely drainage exhaust circular hole 7 is set in the cross section of down tube 5 or vertical tube 6 on horizontal pipe horizontal plane, and minimum radius is avoided docking steel pipe when not affecting welding, and make L value little as far as possible; As L > D1/4, adopt docking mode 5 35 that auxiliary hole is set, namely drainage exhaust circular hole 7 is set on the horizontal plane center line of horizontal pipe.
When the length of side of the vertical plane center line of butt tube joint place plane is less than 60mm, d3=φ 10mm; When the length of side of the vertical plane center line of butt tube joint place plane is more than or equal to 60mm, d3=φ 20mm.
During production, first, the shape of the auxiliary hole that drainage is vented circular hole 7, immersion liquid is vented elongated hole 1, immersion liquid exhaust U hole 4 etc. the present invention relates to and position dimension must strictly by the legend in the present invention and size computing method sizings; Secondly, then develop punching die and drill bit according to position, the hole size after sizing, emphasize, the processing in electrophoresis process hole will adopt the Cold-forming process such as boring, punching, must not adopt the similar approach such as thermal cutting, in order to avoid affect steel pipe material herein.Moreover develop the tooling devices such as suitable fixture, during guarantee punching, steel pipe does not deform, and does not tear, does not produce burr.Process during the product blanking of single-piece auxiliary hole, form enclosed cavity after general assembly, brill is joined by unit in charge of construction in hole.There will be the chassis component of the situation of paddling in vehicle operation, as underframe beam etc. in length and breadth, electrophoretic paint auxiliary hole need shutoff after electrophoresis drying.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, and all done any amendments within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automobile-used pipe support electrophoresis process hole, it is characterized in that: comprise immersion liquid exhaust elongated hole (1), described immersion liquid exhaust elongated hole (1) is arranged on horizontal pipe, and the distance S1 between the edge of described immersion liquid exhaust elongated hole (1) and the edge of horizontal pipe is 10 ~ 20mm;
Width d1=0.25 × the D1 of described immersion liquid exhaust elongated hole (1), wherein D1 refer to horizontal pipe horizontal plane on tube edge on vertical-horizontal pipe horizontal plane center line long, as D1 < 20mm, d1=0;
As the length H1 >=250mm of horizontal pipe, immersion liquid exhaust elongated hole (1) length L1=D1 and L1≤50mm; As 80mm < H1 < 250mm, L1=d1; As H1≤80mm, L1=0.
2. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 1, is characterized in that: described electrophoresis process hole also comprises immersion liquid exhaust U hole (4), and described immersion liquid exhaust U hole (4) is arranged on the end of vertical tube (6) and/or down tube (5);
Width d2=0.25 × the D2 of described immersion liquid exhaust U hole (4), wherein D2 refers to that the tube edge of the vertical plane center line of the auxiliary hole place plane of down tube (5) or vertical tube (6) is long, as D2 < 20mm, d2=0;
As the tube edge long D2 < 40mm of the vertical plane center line of the auxiliary hole place plane of down tube (5) or vertical tube (6), the length L2=12mm of immersion liquid exhaust U hole (4); As D2 >=40mm, L2=20mm.
3. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 1 or 2, it is characterized in that: the length of described horizontal pipe or down tube (5) or vertical tube (6) is when being greater than 600mm and being less than between 1100mm, and the middle part of horizontal pipe or down tube (5) or vertical tube (6) is provided with drainage exhaust circular hole (7);
When the length of horizontal pipe or down tube (5) or vertical tube (6) is more than or equal to 1100mm, the spacing between adjacent drainage exhaust circular hole (7) is 600mm.
4. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 3, it is characterized in that: when the tube edge length of the vertical plane center line of the auxiliary hole place plane of described horizontal pipe or down tube (5) or vertical tube (6) is less than 60mm, the diameter d 3 of drainage exhaust circular hole (7) is 10mm; When the tube edge length of the vertical plane center line of the auxiliary hole place plane of horizontal pipe or down tube (5) or vertical tube (6) is more than or equal to 60mm, the diameter d 3 of drainage exhaust circular hole (7) is 20mm.
5. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 4, it is characterized in that: described immersion liquid exhaust elongated hole (1) is arranged on the center line of horizontal pipe upper and lower surface, and described horizontal pipe is vertical ends horizontal pipe (2) and/or inclined end portion horizontal pipe (3).
6. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 4, is characterized in that: the corner cut acute side of described down tube (5) is provided with immersion liquid exhaust U hole (4), and described immersion liquid exhaust U hole (4) is positioned on the center line of down tube (5).
7. a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 4, it is characterized in that: the end of described vertical tube (6) is provided with through immersion liquid exhaust U hole (4), and described immersion liquid exhaust U hole (4) is positioned on the center line in vertical tube (6) non-covering or non-covered face.
8. the processing technology in the automobile-used pipe support electrophoresis process hole described in an above-mentioned arbitrary claim, it is characterized in that: when described horizontal pipe docks with down tube (5) or vertical tube (6), during the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube (5) or vertical tube (6) equals horizontal pipe on vertical-horizontal pipe horizontal plane center line, drainage exhaust circular hole (7) is set in the central position of down tube (5) or vertical tube (6);
The half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube (5) or vertical tube (6) is greater than horizontal pipe on vertical-horizontal pipe horizontal plane center line but the length of side on the horizontal plane being less than described horizontal pipe on vertical-horizontal pipe horizontal plane center line time, the center line of horizontal pipe arranges drainage exhaust circular hole (7) and drainage is vented cross section that circular hole (7) is positioned at down tube (5) or vertical tube (6);
One half of the length of side on the horizontal plane that the length of side of the vertical-horizontal pipe horizontal plane center line on the cross section of down tube (5) or vertical tube (6) is less than or equal to horizontal pipe on vertical-horizontal pipe horizontal plane center line, drainage exhaust circular hole (7) is set in the cross section of down tube (5) or vertical tube (6), when drainage is vented the distance L > D1/4 between the center of circle of circular hole (7) and horizontal pipe center line, the center line of horizontal pipe arranges drainage exhaust circular hole (7).
9. the processing technology in a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 8, it is characterized in that: during the long < 60mm of the tube edge of the vertical plane center line of the auxiliary hole place plane of described down tube (5) or vertical tube (6), the diameter d 3=10mm of drainage exhaust circular hole (7); During the tube edge length >=60mm of the vertical plane center line of the auxiliary hole place plane of down tube (5) or vertical tube (6), the diameter d 3=20mm of drainage exhaust circular hole (7).
10. the processing technology in a kind of automobile-used pipe support electrophoresis process hole as claimed in claim 8, it is characterized in that: one end of described down tube (5) or vertical tube (6) and the intersection location place of horizontal pipe are when immersion liquid is vented the position of elongated hole (1), and immersion liquid exhaust elongated hole (1) of described position changes to drainage exhaust circular hole (7);
When described horizontal pipe vertically superposes, immersion liquid exhaust elongated hole (1) at adjacent level pipe intersection location place changes to drainage exhaust circular hole (7).
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| CN201610106503.6A CN105546319B (en) | 2016-02-26 | 2016-02-26 | A kind of automobile-used pipe support electrophoresis process hole and its processing technology |
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| CN105546319B CN105546319B (en) | 2017-11-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660498A (en) * | 2017-04-01 | 2018-10-16 | 深圳中集专用车有限公司 | The semi-trailer frame structure of cathode electro-coating can be used |
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| CN102492978A (en) * | 2011-11-28 | 2012-06-13 | 浙江吉利汽车研究院有限公司 | Exhaust apparatus for cavity of automobile |
| CN202358172U (en) * | 2011-12-13 | 2012-08-01 | 中国重汽集团济南动力有限公司 | Crossbeam of heavy truck |
| CN202543360U (en) * | 2012-04-30 | 2012-11-21 | 江苏诚天机械有限公司 | Plug for electrophoretic processing |
| CN203190004U (en) * | 2013-03-20 | 2013-09-11 | 大连固瑞聚氨酯有限公司 | Pouring-type thermal insulation electrophoretic paint processing aluminum alloy profile |
| JP2015196454A (en) * | 2014-04-01 | 2015-11-09 | スズキ株式会社 | Reinforcement member |
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| CN102492978A (en) * | 2011-11-28 | 2012-06-13 | 浙江吉利汽车研究院有限公司 | Exhaust apparatus for cavity of automobile |
| CN202358172U (en) * | 2011-12-13 | 2012-08-01 | 中国重汽集团济南动力有限公司 | Crossbeam of heavy truck |
| CN202543360U (en) * | 2012-04-30 | 2012-11-21 | 江苏诚天机械有限公司 | Plug for electrophoretic processing |
| CN203190004U (en) * | 2013-03-20 | 2013-09-11 | 大连固瑞聚氨酯有限公司 | Pouring-type thermal insulation electrophoretic paint processing aluminum alloy profile |
| JP2015196454A (en) * | 2014-04-01 | 2015-11-09 | スズキ株式会社 | Reinforcement member |
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| CN105546319B (en) | 2017-11-07 |
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